PSE 15 Organiser controlled directories doesn't work in windows 11

Can you please give us a screenshot of your Watched Folders dialog.  Here is mine:

When you say a controlled directory, do you mean a Watched Folder?

It does not surprise me that Elements displays the OS as Win. 10, since Win 11 was not available when Elements 15 was last updated.

Personally, I have not yet updated to Win 11, so can't test whether watched folders should be working.   I think you are the first user to report this issue. The only thing I can suggest is to remove all folders from the watched list, and then select the watched folders again.  If that doesn't work, try resetting the preferences file. Immediately after launching the program, press Alt+Shift+Ctrl. A message should pop up asking if you want to delete the Settings file. Answer OK.  (I don't know whether this shortcut will work in Win 11.  If not, you will have to delete the preferences file manually.  See this article.)

On the windows 10 system PSE14 is still installed and the task manager shows an  active process PhotoshopElementsFileAgent.exe, loaded from C:\Program Files\Adobe\Elements 14 Organizer